“…The term adenofibrosarcoma has been used either synonymously with cystosarcoma phyllodes (Hill and Stout, 1942), or to describe a sarcoma arising in a fibroadenoma (Rogers and Flo, 1942) or for fibrosarcomas of breast containing numerous glandular elements, but with no evidence of benign fibroadenoma (Curran and Dodge, 1962). The majority of spindle cell sarcomas of breast are thought to arise in a pre-existing fibroadenoma (D'Aunoy and Wright, 1930;Treves and Sunderland, 1951;Willis, 1960a;and Stewart, Tumours were placed in group II, if they had a long history of a lump in the breast, the typical macroscopic appearance seen in group I or contained glandular elements but no fibroadenoma.…”